Merge pull request #1122 from marshall-lee/activesupport_blank

require core_ext/object/blank

Author: dblock

lib/grape.rb

@@ -10,7 +10,7 @@
 require 'active_support/version'
 require 'active_support/core_ext/hash/indifferent_access'
 require 'active_support/ordered_hash'
-require 'active_support/core_ext/object/conversions'
+require 'active_support/core_ext/object/blank'
 require 'active_support/core_ext/array/extract_options'
 require 'active_support/core_ext/hash/deep_merge'
 require 'active_support/core_ext/hash/except'